ARK II ND400

Product Description

ARK II ND400
(Reduced exposure grade  9 stops  Material Optical glass)

Athabasca ARK II ND400

Material:
German Schott optical glass
Coating:
Water repellent
Stain resistant
Scratch resistant
Nano coating
Double side anti-reflective film
Technology:
Low reflection and light reducing layer
Thickness:2mm
Installation methods: plug-in filter

Specification of the filters£º
75mm¡Á75mm    100mm¡Á100mm    150mm¡Á150mm    170mm¡Á170mm

ND 8: 12.5%(1/8) light is allowed in or 87.5% light is blocked out.
ND 16: 6.25%(1/16) light is allowed in or 93.75% light is blocked out.
ND 32: 3.5%(1/32) light is allowed in or 96.5% light is blocked out.
ND 64: 1.55%(1/64) light is allowed in or 98.45% light is blocked out.
ND 400: 0.25%(1/400) light is allowed in or 99.75% light is blocked out.
ND 1000: 0.1%(1/1000) light is allowed in or 99.99% light is blocked out.